io.gravitee.rest.api.security.authentication.impl.AuthenticationProviderManagerImpl Maven / Gradle / Ivy

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/*
 * Copyright © 2015 The Gravitee team (http://gravitee.io)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.gravitee.rest.api.security.authentication.impl;

import io.gravitee.common.util.EnvironmentUtils;
import io.gravitee.rest.api.security.authentication.AuthenticationProvider;
import io.gravitee.rest.api.security.authentication.AuthenticationProviderManager;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.env.ConfigurableEnvironment;

/**
 * @author David BRASSELY (david.brassely at graviteesource.com)
 * @author GraviteeSource Team
 */
public class AuthenticationProviderManagerImpl implements AuthenticationProviderManager, InitializingBean {

    @Autowired
    private ConfigurableEnvironment environment;

    private static final Logger LOGGER = LoggerFactory.getLogger(AuthenticationProviderManagerImpl.class);

    private List identityProviders;

    @Override
    public void afterPropertiesSet() throws Exception {
        LOGGER.info("Loading authentication providers");
        loadAuthenticationProviders();
    }

    public List getIdentityProviders() {
        return this.identityProviders;
    }

    @Override
    public Optional findIdentityProviderByType(String type) {
        return identityProviders.stream().filter(provider -> provider.type().equalsIgnoreCase(type)).findFirst();
    }

    private Map getConfiguration(AuthenticationProvider provider) {
        String prefix = "security.providers[" + provider.index() + "].";
        Map properties = EnvironmentUtils.getPropertiesStartingWith(environment, prefix);
        Map unprefixedProperties = new HashMap<>(properties.size());
        properties
            .entrySet()
            .stream()
            .forEach(propEntry ->
                unprefixedProperties.put(
                    EnvironmentUtils.encodedKey(propEntry.getKey()).substring(EnvironmentUtils.encodedKey(prefix).length()),
                    propEntry.getValue()
                )
            );
        return unprefixedProperties;
    }

    private void loadAuthenticationProviders() {
        LOGGER.debug("Looking for authentication providers...");
        identityProviders = new ArrayList<>();

        boolean found = true;
        int idx = 0;

        while (found) {
            String type = environment.getProperty("security.providers[" + idx + "].type");
            found = (type != null);
            if (found) {
                DefaultAuthenticationProvider provider = new DefaultAuthenticationProvider(type, idx);
                provider.setConfiguration(getConfiguration(provider));
                identityProviders.add(provider);
                LOGGER.debug("\tAuthentication provider [{}] has been defined", type);
            }
            idx++;
        }
    }
}